Shocking the eurozone

In this paper, the monetary transmission mechanism within the European Monetary Union is investigated. The impulse response functions and forecast error variance decompositions of a structural vector error correction model (SVECM) are compared with those of a New Keynesian theoretical model. The identifying restrictions of the SVECM are directly derived from the theoretical model. Two permanent shocks are identified, one having only nominal, and one having only real effects. The three transitory shocks comprise a short-term interest-rate shock, an aggregate demand shock and a money demand shock. The main conclusions are that permanently reducing the inflation objective depresses output in the first year, but has no real effects in the long run. Regarding output variability, the results indicate that aggregate demand shocks are most important during the first year, after which aggregate supply shocks dominate.     

Staggered Wage Setting in Normal and Real Terms: A Comparative Analysis*

This paper analyses the behaviour of an economy characterized by staggered wage contract rules specified in nominal and in real terms. It is shown that staggered contracts in real terms imply complex eigenvalues which cause oscillatory paths both for output and unemployment and stonger output losses in response to an unexpected and permanent fall in the growth rate of money supply.     

The hump-shaped behavior of inflation and a dynamic externality

We propose a general equilibrium model that explains the empirical evidence of the hump-shaped response of inflation to a monetary policy shock. The model replaces backward-looking indexation à la Christiano et al. [2005. Nominal rigidities and the dynamic effect of a shock to monetary policy. Journal of Political Economy 113(1), 1-45] with a dynamic externality into the production function of firms. The model, armed with sticky wages and variable capital utilization, has two offsetting effects on real marginal cost over the business cycle. First, increasing factor prices raise real marginal cost in response to an expansionary monetary policy shock in the intermediate run. Second, a dynamic externality reduces real marginal cost in the short run because it raises productivity in response to an increase in output following the shock. Overall, the resulting short-run decrease and intermediate-run increase in marginal cost replicate the hump-shaped behavior of inflation under purely forward-looking price and wage Phillips curves.     

Inflation and output dynamics in a model with labor market search and capital accumulation

In a sticky-price model with labor market search and habit persistence, Walsh (2005) shows that inertia in the interest rate policy helps to reconcile the inflation and output persistence with empirical observations for the US economy. We show that this finding is sensitive with regard to the introduction of capital formation. While we are able to replicate the findings for the inflation inertia in a model with capital adjustment costs and variable capacity utilization, the output response to an interest shock is found to be too large and no longer hump-shaped in this case. In addition we find that the response of output to a technology shock can only be reconciled with empirical findings if either the adjustment of the utilization rate is very costly or there is only a modest amount of nominal rigidity in the economy.     

Real exchange rate dynamics in sticky wage models

We investigate the role of sticky wages in accounting for real exchange rate dynamics. Unlike the sticky price economy, government spending shocks play a more important role than technology shocks in explaining the hump-shaped impulse responses of real exchange rates.     

Agency Costs in Dynamic Economic Models

We consider an overlapping generations economy where capital is produced from bank loans under stochastic constant returns to scale, and subject to idiosyncratic shocks whose realisations are costly to verify. Our formulation differs from earlier work in permitting investment projects to be infinitely divisible and private agency costs to be convex. If there are external economies to financial intermediation, then deviations from steady-state output are negatively correlated with the spread between loan and deposit rates. Moreover, the capital stock correspondence is set-valued, a result consistent with poverty traps, growth cycles, and hump-shaped impulse response functions.     

Liquidity effects and habit formation in a sticky price model

This paper sets up a sticky price model with external habit formations. It shows that the cross-correlation between output and interest rates as well as prices match the data well when there is habit formation. Consumption as well as output display a hump-shaped response to a positive monetary shock when there is habit formation. The paper also shows that the sticky price model with Abel's (1990, 1999) external habit formation succeeds in generating liquidity effects.     

Habit formation in state-dependent pricing models: Implications for the dynamics of output and prices

This paper examines the role of habit formation in a standard state-dependent pricing (SDP) model. Incorporating habit formation helps the SDP model to generate hump-shaped and more persistent output responses under a monetary shock. More importantly, incorporating habit formation causes dramatic changes in firm-level pricing behaviors and, as a result, the aggregate price index.     

Endogenous growth, monetary shocks and nominal rigidities

We introduce endogenous growth in a standard NK model with staggered prices and wages. We find that the source of nominal rigidities, the shock persistence and the type of Taylor rule affect the relationship between monetary volatility and growth.     

Nominal Wage Flexibility and Economic Performance: Evidence and Implications Across Industrial Countries

By considering the theoretical connection between labour and product markets, the paper evaluates the economic relationship of these markets within the contractual wage rigidity New Keynesian explanation of business cycles. The empirical analysis focuses on the short‐run cyclical behaviour of real output, prices and wages for 19 industrial countries. Time‐series and cross‐sectional regressions are estimated. Cross‐sectional cyclical correlations in the labour and goods markets are also evaluated across countries. Consistent with the theoretical predictions, aggregate uncertainty is an important factor in increasing the flexibility of the nominal wage in response to aggregate demand shocks. Wage flexibility accelerates price inflation and moderates the response of real output growth to aggregate demand shocks. Wage flexibility does not appear to be an important factor in differentiating the real and inflationary effects of energy price shocks across countries. Finally, aggregate uncertainty increases the responsiveness of output and price to productivity shocks.     

Nonlinearity and structural stability in the Phillips curve: Evidence from Turkey

In this paper, we investigate possible nonlinearities in the inflation–output relationship in Turkey for the 1980–2008 period. We first estimate a linear bivariate model for the inflation rate and output gap, and test for linearity of the estimated model against nonlinear alternatives. Linearity test results suggest that the relationship between the inflation rate and output gap is highly nonlinear. We estimate a bivariate time-varying smooth transition regression model, and compute dynamic effects of one variable on the other by generalized impulse response functions. Computed impulse response functions indicate that inflation–output relationship in Turkey during the analyzed period was regime dependent and varied considerably across time.     

Liquidity, infinite horizons and macroeconomic fluctuations

This paper develops a computable dynamic general equilibrium model in which corporate demand for liquidity is endogenously determined. In the model, liquidity demand is motivated by moral hazard, as in Holmström and Tirole (J. Politic. Econom. 106 (1998) 1). As a result of incorporating agency cost and endogenously determined liquidity demand, the model can replicate an empirical business cycle fact, the hump-shaped dynamic response of output, which is seldom observed in standard RBC dynamics. Further, in the model the corporate demand for liquidity from a financial intermediary (credit line, for instance) is pro-cyclical, while the degree of liquidity dependence (defined as liquidity demand divided by corporate investment) is counter-cyclical. These business cycle patterns are consistent with a stylized fact empirically verified in the lending view literature.     

Wage rigidities and unemployment fluctuations in a small open economy

This study analyzes the implications of the monetary policy for the unemployment rate in a small open economy. We introduce nominal wage rigidities and unemployment into the small open economy version of the dynamic stochastic general equilibrium model. We derive three main findings. First, under nominal wage rigidities, the cyclical properties of the calibrated model, in response to a productivity shock, are consistent with the empirical evidence on a decrease in employment and an increase in real wages. Second, for all the variables considered, the Taylor rule tracks the optimal policy better than the simple rule with unemployment as an argument. Third, regardless of the output or unemployment gap being targeted, it is not optimal that central banks respond to nominal exchange rate variations.     

The impact of fiscal-monetary policy interactions on government size and macroeconomic performance

This paper analyzes the relationship between inflation, output and government size by reexamining the time inconsistency of optimal monetary and fiscal policies in a general equilibrium model with staggered timing structure for the acquisition of nominal money à la Neiss (Neiss, Katharine S. (1999), Discretionary Inflation in a General Equilibrium Model, Journal of Money, Credit and Banking, 31(3), pp. 357–374.), and public expenditure financed by means of a distortive tax. It is shown that, with predetermined wages, the equilibrium rate of inflation is above the Friedman rule and the equilibrium tax rate is below the efficient level. In particular, the discretionary rate of inflation is nonmonotonically related to the natural output, positively related to government size, and negatively related to the degree of central bank conservatism. Finally, a regime with commitment leads to welfare improvements over a regime with discretion.     

Macroeconomic Uncertainty and Performance in Asian Countries*

We use a very general bivariate GARCH‐M model and quarterly data for five Asian countries to test for the impact of real and nominal macroeconomic uncertainty on inflation and output growth. We conclude the following. First, in the majority of countries uncertainty regarding the output growth rate is related negatively to the average growth rate. Secondly, contrary to expectations, inflation uncertainty in most cases does not harm the output growth performance of an economy. Thirdly, inflation and output uncertainty have a mixed effect on inflation. Consistent results are found using the VAR‐GARCH‐M approach to investigate the dynamic relationship between inflation and output growth using impulse response functions. This evidence implies that macroeconomic uncertainty may even improve macroeconomic performance, i.e. raise output growth and reduce inflation. Our empirical results highlight important differences with those for industrialized countries.     

Imperfect competition and indeterminacy of aggregate output

This paper shows imperfect competition can lead to indeterminacy in aggregate output in a standard DSGE model with imperfect competition. Indeterminacy arises in the model from the composition of aggregate output. In sharp contrast to the indeterminacy literature pioneered by Benhabib and Farmer [J. Benhabib, R. Farmer, Indeterminacy and increasing returns, J. Econ. Theory 63 (1) (1994) 19-41] and Gali [J. Gali, Monopolistic competition, business cycles, and the composition of aggregate demand, J. Econ. Theory 63 (1) (1994) 73-96], indeterminacy in our model is global; hence it is more robust to structural parameters. In addition, sunspots in our model can be autocorrelated. The paper provides a justification for exogenous variations in desired markups, which play an important role as a source of cost-push shocks in the monetary policy literature. Our model outperforms a standard RBC model driven by technology shocks in several dimensions, including the volatility of labor market and the hump-shaped output dynamics.     

Estimated general equilibrium models for the evaluation of monetary policy in the US and Europe

In this paper we derive a general equilibrium model based on optimising behaviour, which also implies a data consistent framework for monetary policy analysis. Specifically, our model accounts for nominal inertia in both price and wage setting as well for habits in consumption. Using US and European data from 1970 to 1998 our parameter estimates reveal that (i) price contracts last for 8 months and 13 months in the US and Euro-area, respectively; (ii) wage contracts have a length of 7 months and 1.75 years in the US and Europe, respectively; (iii) the extent of backward-looking behaviour in price setting is statistically significant in both economies with 41% of price contracts in the US and 28% in the Euro-area set according to a simple rule-of-thumb; (iv) backward-looking wage setting is only present in Europe with 17% of contracts set in a backward-looking manner; and (v) similar habits effects are present in both European and US consumption. Finally, we simulate the effects of monetary policy by considering the impact of a 1 point increase in nominal interest rates for one quarter. Our parameter estimates imply that there is a relatively muted inflationary response to interest rate increases in Europe (price inflation falls by -0.08% in Europe and 0.11% in the US) and there is a correspondingly large output response (-0.2% in the US and -0.6% in Europe).     

Nominal inertia and shock persistence in UK business cycles

A structural VAR methodology is used for UK data to identify and map out the effects of innovations in the money supply, employment, output, wages and prices. Moreover, bands of two standard errors are computed for the impulse response functions so that comment may be made on the significance of the dynamic responses of the variables to the simulated shocks. This allows conclusions to be drawn on the persistence of shocks. Results suggest that output variation is largely determined by aggregate demand shocks over the business cycle frequency. Importantly, evidence is also found of rigidities in the form of price inertia and nominal wage stickiness.     

Policy trade-off in the long run: A new Keynesian model with technological change and money growth

In this study, we introduce a constant rate of technological change and money growth into the standard new Keynesian model, in which both prices and nominal wages are supposed to be sticky. Using such a model, we examine whether a policy trade-off exists between curbing inflation and stabilizing the welfare-relevant output gap in the steady state. If we take only price stickiness into consideration, a policy trade-off does not occur. However, if both nominal wage stickiness and price stickiness are taken into consideration, a policy trade-off occurs.     

Distribution shocks in a Kaleckian model with hysteresis and monetary policy

This study presents a dynamic Kaleckian model with different demand and distribution regimes, a monetary policy rule and hysteresis in the natural output level. We analyse the local stability of the steady state and the transitional dynamics in different combinations of demand and distribution regimes. Our model indicates that the initial condition in an economy matters for the steady state selection from multiple ones. Using impulse response function analysis, we show that a temporary shock to the income distribution can cause permanent effects on the dynamics of endogenous variables. Moreover, the degree of hysteresis influences the magnitude of impact on output levels. Monetary policy cannot stabilise output levels in the face of temporary shocks. Finally, we find that in a wage-led demand regime, a rise in inequality of functional income may lead to secular stagnation.